Method and system for area code rough initial position for gnss assistance data in a communication network

Abstract

A method and system is presented for a global navigation satellite system (GNSS) enabled WCDMA handset to receive reference locations from a network location server based on RNC geographic service areas. The GNSS enabled WCDMA handset may generate a location request comprising an RNC ID and may determine its location based on the received reference location and/or received GNSS assistance data. The RNC geographic service area and/or an area of uncertainty may comprise one or more of a latitude, a longitude and uncertainty value. Accuracy of the RNC geographic service area and/or the area of uncertainty may be increased over time. The RNC service area may be determined by the network location server based on an average of a plurality of handset locations that are reported by handsets that are served by the RNC. Handset location reports may comprise the RNC ID.

1 . A method for communication, the method comprising:
 receiving from a network location server by a GNSS enabled WCDMA handset, a reference location and/or GNSS assistance data wherein said reference location and/or GNSS assistance data is determined by said network location server based on a geographic service area of an RNC serving said GNSS enabled WCDMA handset and/or area of uncertainty for said RNC; and   determining a location of said GNSS enabled WCDMA handset based on said received reference location and/or GNSS assistance data.   
     
     
         2 . The method according to  claim 1 , wherein said geographic service area of said RNC and/or said area of uncertainty for said RNC are determined by said network location server based on an average of a plurality of reported locations of handsets served by said serving RNC. 
     
     
         3 . The method according to  claim 2 , wherein said plurality of reported locations of handsets comprises an identifier of said serving RNC. 
     
     
         4 . The method according to  claim 1 , wherein an accuracy of said geographic service area of said RNC and/or said area of uncertainty for said RNC are increased based on reported locations of one or more handsets served by said serving RNC. 
     
     
         5 . The method according to  claim 1 , wherein said geographic service area of said RNC and/or said area of uncertainty for said RNC comprises one or more of a latitude, a longitude and uncertainty value. 
     
     
         6 . The method according to  claim 1 , comprising acquiring said geographic service area of said RNC and/or said area of uncertainty for said RNC based on a an ID and/or an RNC-ID area code. 
     
     
         7 . The method according to  claim 1 , comprising generating by said GNSS enabled WCDMA handset, a location request comprising an identifier of said RNC. 
     
     
         8 . The method according to  claim 1 , wherein said network location server acquires information utilized to determine said geographic service area of said RNC and/or said area of uncertainty for said RNC from an assistance server. 
     
     
         9 . A machine-readable storage having stored thereon, a computer program having at least one code section for communication, the at least one code section being executable by a machine for causing the machine to perform steps comprising:
 receiving from a network location server by a GNSS enabled WCDMA handset, a reference location and/or GNSS assistance data wherein said reference location and/or GNSS assistance data is determined by said network location server based on a geographic service area of an RNC serving said GNSS enabled WCDMA handset and/or area of uncertainty for said RNC; and   determining a location of said GNSS enabled WCDMA handset based on said received reference location and/or GNSS assistance data.   
     
     
         10 . The machine-readable storage according to  claim 9 , wherein said geographic service area of said RNC and/or said area of uncertainty for said RNC are determined by said network location server based on an average of a plurality of reported locations of handsets served by said serving RNC. 
     
     
         11 . The machine-readable storage according to  claim 10 , wherein said plurality of reported locations of handsets comprise an identifier of said serving RNC. 
     
     
         12 . The machine-readable storage according to  claim 9 , wherein an accuracy of said geographic service area of said RNC and/or said area of uncertainty for said RNC are increased based reported locations of one or more handsets served by said serving RNC. 
     
     
         13 . The machine-readable storage according to  claim 9 , wherein said geographic service area of said RNC and/or said area of uncertainty for said RNC comprises one or more of a latitude, a longitude and uncertainty value. 
     
     
         14 . The machine-readable storage according to  claim 9 , wherein said at least one code section comprises code for acquiring said geographic service area of said RNC and/or said area of uncertainty for said RNC based on a an ID and/or an RNC-ID area code. 
     
     
         15 . The machine-readable storage according to  claim 9 , wherein said at least one code section comprises code for generating by said GNSS enabled WCDMA handset, a location request comprising an identifier of said RNC. 
     
     
         16 . The machine-readable storage according to  claim 9 , wherein said network location server acquires information utilized to determine said geographic service area of said RNC and/or said area of uncertainty for said RNC from an assistance server. 
     
     
         17 . A system for communication, the system comprising:
 one or more processors in a GNSS enabled WCDMA handset, wherein said one or more processors are operable to receive from a network location server, a reference location and/or GNSS assistance data wherein said reference location and/or GNSS assistance data is determined by said network location server based on a geographic service area of an RNC serving said GNSS enabled WCDMA handset and/or area of uncertainty for said RNC; and   said one or more processors are operable to determine a location of said GNSS enabled WCDMA handset based on said received reference location and/or GNSS assistance data.   
     
     
         18 . The system according to  claim 17 , wherein said geographic service area of said RNC and/or said area of uncertainty for said RNC are determined by said network location server based on an average of a plurality of reported locations of handsets served by said serving RNC. 
     
     
         19 . The system according to  claim 18 , wherein said plurality of reported locations of handsets comprise an identifier of said serving RNC. 
     
     
         20 . The system according to  claim 17 , wherein an accuracy of said geographic service area of said RNC and/or said area of uncertainty for said RNC are increased based reported locations of one or more handsets served by said serving RNC. 
     
     
         21 . The system according to  claim 17 , wherein said geographic service area of said RNC and/or said area of uncertainty for said RNC comprises one or more of a latitude, a longitude and uncertainty value. 
     
     
         22 . The system according to  claim 17 , wherein said one or more processors are operable to acquire said geographic service area of said RNC and/or said area of uncertainty for said RNC based on a an ID and/or an RNC-ID area code. 
     
     
         23 . The system according to  claim 17 , wherein said one or more processors are operable to generate by said GNSS enabled WCDMA handset, a location request comprising an identifier of said RNC. 
     
     
         24 . The system according to  claim 17 , wherein said network location server acquires information utilized to determine said geographic service area of said RNC and/or said area of uncertainty for said RNC from an assistance server.